Those_____ have caught H1N1 disease must be kept off from us.
Mum, must I wash the dishes right now?—No, you ____.
Mrs. King can speak Chinese very well, but she can only write______ Chinese words.
We carefully compared the result of the first experiment with_______ of the second one.
You look unhappy, what’s happening, my son? —I’m wondering how long it’ll be________ we come to China again.